Saw-swage.



No. 794.340. PATBNTBD JULY 11. 1905. J. H. BROWN.

SAW sW-AGB.

APPLICATION FILED` JAN. 18, 1905.

y y u, www wfglv Witnesses:

. A .l l

Attorneys.

NITE@ STATES *Patented duly 1i, 1905.

ATENT Tricia SPECIFICATION forming part of Letters Patent No. 794,340, dated J illyA 1 1, 1905. Application filed January 1S, 1905. Serial No. 241,654.

To (Jl/ZZ whom it may concern:

Be it known that I, JAMES HARDING BROWN, a citizen of the United States, residing at Eau Claire, in the county of Eau Claire and State of Wisconsin, have invented a new and useful Saw-Swage, of which the followingis a specification.

This invention relates to band-saw swages.

rlhe object of the invention is to provide a swage in which the operator may inspect the teeth being swaged, thereby to secure accurate swaging of all the teeth and also to obviate mashing, which frequently occurs where merely the judgment of the operator as to the degree of force or pressure to be applied is relied upon to determine when the tooth is properly swaged; furthermore, to improve the manner of combining' the anvil and swage with the implement, so that these parts may readily be removed from the stock or body portion of the implement without interfering with any of the parts of the latter.

With the above and other objects in view, as will appear as the nature of the invention is better understood, the same consists in the novel construction and combination of parts of a band-saw swage, as will be hereinafter fully described and claimed.

In the accompanying drawings, forming a part of this specification, and in which like characters of reference indicate correspond ing parts, Figure l is a View in perspective exhibiting a portion of a band-saw with the implement of the present invention combined therewith. Fig. 2 is avertical transverse sectional view taken on the line 2 2, Fig. 1, and looking in the direction of the arrow. Fig. 3 is a view in vertical longitudinal section taken on the line 3 3, Fig. 2. Fig. 4 is a perspective detail view of the headblock viewed from its rear.

- Referring to-the drawings, l designates the stock of the implement, which is provided, as usual, with a pair of saw-clamping screws 2 and 3, with a saw-slot 4, and witha gage, (designated generally 5.) The clamping-screw 2 carries a nut 6, by which it is locked at any desired adjustment, and the screw 3 carries a lever 7, as usual, by which to effect positive clamping of the saw S in position.

The gage comprises acurvcd arm 8, which is secured at one end to the stock by bolts 9 and is provided at its other end with an adjusting-bolt 10, adapted to clamp the slotted arm 11 of a saddle 12 in any desired adjustment, the saddle having combined with it a plate 13 to shield its crest against wear by contact with the saw-teeth. These parts may be of the usual or any preferred construction and may he otherwise shaped and assembled without departing from the spirit of the invention.

The gist of the presentinvention residesin the novel manner of combining the anvil and the swage-die with the stock in such manner as to permit of their being removed without interfering with the other parts of the implement. To secure this result, there is a headblock 14 provided, which is secured to the 'face of the stock by bolts 15. This headblock is bifureated for a portion of its length at 16 to permit positioning' of the saw-teeth relatively to the anvil and the swage-die, and the upper portion of the bifurcation is enlarged at17 to present a sight-opening,th rough which the swage-die 18 and anvil 19 may be inspected, the latter being of the usual construction-that is, consisting' of a shaft having an intermediate eccentric portion 20 coacting with the anvil 19 in swaging saw-teeth. It will be observed by reference to Fig. 1 that the outer face of the stock, or that to which the head-block is secured, is obliquely disposed relatively to its length, and by this arrangement the inspection of the work through the sight-opening17 is facilitated and a better view is obtained than could result if the head-block were arranged at right angles to the length of the stock. The swagedie carries a. lever 21, by which it is rotated and is held against lateral movementrelatively to the head-block by a yoke or keeper 22, which engages a groove- 23, formed in the die for this purpose. The anvil, as clearly shown in Figs. 3 and 4, is constructed of an approximately rectangular block of metal having its lower face 22 beveled at an incline to its length and pitched at the proper angle to coact with the central portion of the swage-die to effect proper upsetting of the saw-teeth.

To secure proper adjustment of the anvil relatively to the swage-die, a jam or adjusting bolt 23 is provided, which is carried by the upper portion of the head-block, as clearly shown in Fig. 3.

It will be seen from the foregoing description that inasmuch as the saw-swage portion proper of the implement is carried entirely by ahead-block that in the event of breakage of either of these parts repairs may quickly and cheaply be effected, as it will only necessitate loosening of the bolts 15 to render it possible to remove the anvil and replace a new one to remove the swage-die. The latter, however, may be detached without removing the headblock by loosening the yoke 22.

With the saw-swage of ordinary construction damage to that portion carrying the swage-die and anvil will render the whole implernent inoperative, whereas with the present invention damage to these parts would'only necessitate the renewal of the head-block, if this be injured, and of the swage-die and anvil.

Having thus described the invention, what is claimed isl. In a saw-swage, the combination with a stoclnof a head-block detachably connected to the forward portion thereof and provided Y with a longitudinal channel a portion of which is enlarged to present a siglit-oliiening, a swage-die carried by the head-blocl and having its operative portion disposed opposite the sight-opening, an anvil mounted within the channel and having its operative point disposed opposite the sight-opening, and means for adjusting the an vil relatively to the swagedie. f

2. In a saw-swage, the combination with a stock having its outer end disposed obliquely to its length, of a head-block detachably connected with the oblique portion and provided with a longitudinal channel a portion of which is enlarged to present a sight f opening, a swage-die carried by the head-block and having its operative face disposed opposite the sight-opening, an anvil mounted within the channel and having its operative point disposed opposite the sight-opening, and means for adjusting the anvil relatively to the swagedie.

In testimony that I claim the foregoing as my own I have hereto aixed my signatu re in the presence of two witnesses.

JAMES HARDING BROWN.

Witnesses:

W. A. SMITH, WVM. J. KnssLuR. 

